81
Given thatj = ax1 + 7, which of the following are correct Java statements for this
equation? y = a * x * x * x +
;
a" x" x" (x+
3! ( a * x ) * a * x )
*a * ( x * x
State the order of evaluation of the operators in each of the following
Java statements, and show the value of x after each statement is performed:
a) x =
+
*
/
;
b) x =
%
+
*
/
;
c) x = (
*
* (
+ (
*
/ (
} 3 ) );
=a
'• '•:
Write an application that displays the numbers 1 to 4 on the same line, with each pair of
adjacent numbers separated by one space. Write the program using the following techniques:
a) Use one System.out. print!n statement.
b) Use four System.out.print statements.
c) Use one System.out .printf statement.
Write an application that asks the user to enter two integers, obtains them from the user
and prints their sum, product, difference and quotient (division). Use the techniques shown in Fig.
2.7.
Write an application that asks the user to enter two integers, obtains them from the user
and displays the larger number followed by the words "i s larger". If the numbers are equal, print the
message "These numbers are equal". Use the techniques shown in Fig. 2.15.
Write an application that inputs three integers from the user and displays the sum, average,
product, smallest and largest of the numbers. Use the techniques shown in Fig. 2.15. [Note: The
calculation of the average in this exercise should result in an integer representation of the average. So
if the sum of the values is 7, the average should be 2, not 2.3333—]
Write an application that displays a box, an oval, an arrow and a diamond using asterisks
(• ), as follows:
What does the following code print?
System.out.print!n( What does the
following code print?
System.out.print!n(
System.out.print!n(
System.out.println(
System.out.println(
System.out.println(
);
);
);
);
);